Merge remote-tracking branch 'upstream/master' into init_auto

[nit.git] / tests / test_msgpack_deserialization.nit

diff --git a/tests/test_msgpack_deserialization.nit b/tests/test_msgpack_deserialization.nit
new file mode 100644 (file)
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+++ b/tests/test_msgpack_deserialization.nit
@@ -0,0 +1,74 @@
+# This file is part of NIT ( http://www.nitlanguage.org ).
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# alt0 non-generics plain
+# alt1 non-generics metadata
+# alt2     generics plain
+# alt3     generics metadata
+# alt4     generics metadata cache_metadata_strings
+
+import test_deserialization
+import msgpack
+import msgpack::read
+import json
+#alt2# import test_deserialization_serial
+#alt3# import test_deserialization_serial
+#alt4# import test_deserialization_serial
+
+var entities = new TestEntities
+
+var tests = entities.without_generics
+#alt2#tests = entities.with_generics
+#alt3#tests = entities.with_generics
+#alt4#tests = entities.with_generics
+
+for o in tests do
+       var plain = true
+       #alt1#plain = false
+       #alt3#plain = false
+       #alt4#plain = false
+
+       var writer = new BytesWriter
+       var serializer = new MsgPackSerializer(writer)
+       serializer.plain_msgpack = plain
+       #alt4#serializer.cache_metadata_strings = true
+       serializer.serialize o
+       var bytes = writer.bytes
+
+       # Nit source
+       print "# 1. Nit source:\n{o}\n"
+
+       # Generated MessagePack
+       print "# 2. MsgPack:\n{bytes.chexdigest}\n"
+
+       # Python deserialization line to ensure compliance and otherwise debug
+       #print "msgpack.unpackb(b'{bytes.chexdigest}')"
+
+       # Show readable structure of the generated MessagePack as JSON
+       var msg = (new BytesReader(bytes)).read_msgpack
+       var json = if msg != null then
+                       msg.serialize_to_json(plain=true, pretty=true)
+               else "null"
+       print "# 3. JSON:\n{json}\n"
+
+       # Deserialize
+       var deserializer = new MsgPackDeserializer(new BytesReader(bytes))
+       if serializer.plain_msgpack then
+               var deserialized = deserializer.deserialize(o.class_name)
+               print "# 4. Back in Nit (no metadata):\n{deserialized or else "null"}\n"
+       else
+               var deserialized = deserializer.deserialize
+               print "# 4. Back in Nit (with metadata):\n{deserialized or else "null"}\n"
+       end
+end